Wayne,

A common problem, and a recent solution:

http://preview.tinyurl.com/ecwsy

Calfee is probably the world's leading expert in the field of carbon
fiber bicycles, so much in fact that he now builds with bamboo, as
carbon frames are a solved problem.

Calfee pretty much proves fork alignment can be one cause of speed
wobble. There may be others, but I would bet your fork is out of
alignment. Send it to Calfee now before the season picks up.

Bruce